Unfortunately “the industry” has no clear-cut preference. The techniques that are used depend entirely on your own personal preferences, and on any in-house style-guides that a team might have.
About the closest that we can get in terms of finding out what is commonly being done, are things like the 2014 JavaScript Developer Survey, where the summary analysis (PDF) provides some interesting (though no OO breakdown) details.
It’s useful to know both the OO and prototypal techniques, so that you can use either/or as the case may be, and use your own preferred coding style when it comes to your own personal preferences.
I’m with you in finding that JavaScript is better suited to prototypal myself too.